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Finding the Fourth Proportional to 159,476.60, 239,214.90 and 89,346.80

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Solution

The fourth proportional to 159,476.60, 239,214.90 and 89,346.80 is: 134,020.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,476.60 : 239,214.90 = 89,346.80 : x
  2. Step 2: Convert to fraction form
    159,476.60/239,214.90 = 89,346.80/x
  3. Step 3: Cross multiply
    159,476.60x = 239,214.90 × 89,346.80
  4. Step 4: Simplify right side
    159,476.60x = 21,373,085,827.32
  5. Step 5: Solve for x
    x = 21,373,085,827.32/159,476.60
  6. Step 6: Final answer
    x = 134,020.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.